 
 (defn- min-max-step
   [ai turn on-transition]
-  (min-max-step-by identity ai turn on-transition)) ;; TODO - avoid projection
+  (min-max-step-by identity ai turn on-transition))         ;; TODO - avoid projection
 
 ;; -----------------------------------------
 

          (turn/apply-transition turn transition)
          (dec depth))))
    ))

;; -----------------------------------------
;; Public API

      (summarize-score ai (reduce scores/update-scores scores transition))
      )))

(defn- tree-score
  [ai turn depth]
  (if (= 0 depth)
    (leaf-score ai turn)
